What is the share of each heir from the deceased's estate, in the presence of: (son, mother, daughter, wife), and a will from the deceased to his sisters for "a dunam and a half" for the sister who died before him, and "a dunam and a half" for the living sister, on the basis that it is their inheritance only?

The estate of the deceased is divided as follows: The wife receives one-eighth due to the existence of a lineal descendant, and the mother receives one-sixth due to the existence of a lineal descendant. The remainder goes to the children by way of ta’sib (residuary heirship), with the male receiving the share of two females. As for the bequest (wasiyya), it is not valid because it is for a deceased person and for an heir, and because the deceased is not capable of ownership. The bequest should be returned to the general estate and divided with it. The matter of estates must be referred to the Sharia courts for investigation to preserve the rights of all heirs and rightful claimants.